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Title: Contribution of Uranium-Bearing Evaporites to Plume Persistence Issues at a Former Uranium Mill Site Riverton, Wyoming, USA

• Evaporites occur in an unsaturated silt layer, which is underlain by a sand and gravel aquifer. • These evaporites are rich in chloride across the site. • Uranium concentrations are higher in the evaporites that overlie the uranium contaminant plume. • Flooding can solubilize the evaporites in the silt layer and release chloride, sulfate (not shown), and uranium into the underlyingsand and gravel aquifer. • The uranium-rich evaporites can delay natural flushing, creating plume persistence near the Little Wind River.
Authors:
 [1] ;  [2] ;  [1] ;  [3] ;  [1] ;  [4]
  1. Navarro Research and Engineering
  2. U.S. Department of Energy, Legacy Management
  3. U.S. Geological Survey 1225 Market Street Riverton, WY 82501
  4. Navarrao Research and Engineering
Publication Date:
OSTI Identifier:
1323933
DOE Contract Number:
DE-LM000421
Resource Type:
Conference
Resource Relation:
Conference: GSA 2016, Denver, CO, 9/25-9/28/16
Research Org:
US Department of Energy/Office of Legacy Management
Sponsoring Org:
USDOE Office of Legacy Management (LM), Office of Site Operations (LM-20)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES